Array type wireless charging system

Abstract

The invention provides an array type wireless charging system. The array type wireless charging system comprises a power supply, an upper computer, a magnetic coupling mechanism and a transmitting end detection circuit. Wherein the transmitting end detection circuit is electrically connected with the magnetic coupling mechanism, the transmitting end detection circuit is used for detecting wireless charging equipment, and the magnetic coupling mechanism can charge the wireless charging equipment. When the array type wireless charging system works, the upper computer determines the remaining charging positions according to the currently counted number of the magnetic coupling mechanisms and then distributes the charging positions, the distributed magnetic coupling mechanisms are powered on and started to work, and when the transmitting end detection circuit detects that the wireless charging equipment reaches the positions of the distributed magnetic coupling mechanisms, the wireless charging equipment is started to work. And the magnetic coupling mechanism charges the wireless charging equipment. Moreover, any two adjacent magnetic coupling mechanisms are orthogonally placed, so that the occupied area for placing the transmitting end can be saved, each charging unit can work independently and is not interfered by a coil beside, and the reliability and the stability of the system are enhanced.

Description

Technical Field

[0001] The present invention relates to the field of wireless charging, and more particularly, to an array-type wireless charging system. Background Art

[0002] Currently, in the prior art, the cluster wireless power supply scheme has the following two deficiencies: there is cross-coupling between adjacent transmitting coils, which reduces the power density of a single transmitting unit and increases the instability of the system. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0004] To this end, a first aspect of the present invention proposes an array-type wireless charging system.

[0005] In view of this, a first aspect of the present invention provides an array-type wireless charging system, including: a power supply; a host computer; a magnetic coupling mechanism, the number of magnetic coupling mechanisms being multiple, any two adjacent magnetic coupling mechanisms being orthogonally arranged, the magnetic coupling mechanism being electrically connected to the power supply and the magnetic coupling mechanism being electrically connected to the host computer; a transmitting end detection circuit, the transmitting end detection circuit being electrically connected to the magnetic coupling mechanism, the transmitting end detection circuit being used to detect the position of the wireless charging device; wherein, the magnetic coupling mechanism can charge the wireless charging device.

[0006] In addition, the array-type wireless charging system provided by the above technical solution of the present invention may further have the following additional technical features: In some technical solutions of the present invention, optionally, the magnetic coupling mechanism includes: a magnetic shielding layer; a transmitting coil, the transmitting coil being connected to the magnetic shielding layer; a transmitting end detection coil, the transmitting end detection coil being sleeved on the transmitting coil.

[0007] In some technical solutions of the present invention, optionally, the transmitting coil is a DD-type coil.

[0008] In some technical solutions of the present invention, optionally, a compensation topology circuit, the compensation topology circuit being electrically connected to the transmitting coil, the compensation topology circuit being used to compensate the reactive power of the transmitting coil.

[0009] In some technical solutions of the present invention, optionally, a rectification module, the rectification module being electrically connected to the power supply, the rectification module being used to convert alternating current into direct current; an inversion module, the inversion module being electrically connected to the rectification module, the inversion module being used to convert direct current into alternating current.

[0010] In some technical solutions of the present invention, optionally, the transmitting end detection circuit includes: a first control switch, a first end of the first control switch is electrically connected to a first end of the inverter module, and a second end of the first control switch is electrically connected to the transmitting coil; a second control switch, a first end of the second control switch is electrically connected to a second end of the inverter module, and a second end of the second control switch is electrically connected to the transmitting coil; a controller, the controller is electrically connected to the power supply and the transmitting end detection coil, and the controller is configured to control the on / off of the first control switch and the second control switch.

[0011] In some technical solutions of the present invention, optionally, the wireless charging device includes: a load battery; a receiving end detection coil; a receiving end detection circuit, the receiving end detection circuit is electrically connected to the receiving end detection coil, and the receiving end detection circuit is configured to detect the induced voltage of the transmitting end detection coil; a receiving coil, the receiving coil is electrically connected to the load battery.

[0012] Through the array-type wireless charging system proposed by the present invention, multi-target cluster power supply for electrical equipment is realized, which has advantages such as high power density, strong anti-offset, integration, and reduction of installation floor area. The additional aspects and advantages of the present invention will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present invention. Description of the Drawings

[0013] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where: Figure 1 FIG. 1 is one of the schematic diagrams of an array-type wireless charging system according to an embodiment of the present invention; Figure 2 FIG. 2 is one of the schematic diagrams of a magnetic coupling mechanism according to an embodiment of the present invention; Figure 3 FIG. 3 is one of the schematic diagrams of a magnetic coupling mechanism according to an embodiment of the present invention; Figure 4 FIG. 4 is one of the schematic diagrams of an array-type wireless charging system according to an embodiment of the present invention. Detailed Embodiments

[0014] In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the drawings and specific embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0015] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention may be practiced in other ways than those specifically described herein, and thus, the scope of protection of the present invention is not limited by the specific embodiments disclosed below.

[0016] Reference is made below to Figures 1 to 4 describe an array-type wireless charging system according to some embodiments of the present invention.

[0017] As Figure 1 shown, a first aspect of the present invention provides an array-type wireless charging system, including: a power supply; a host computer; a magnetic coupling mechanism, the number of magnetic coupling mechanisms being multiple, any two adjacent magnetic coupling mechanisms being orthogonally arranged, the magnetic coupling mechanism being electrically connected to the power supply, and the magnetic coupling mechanism being electrically connected to the host computer; a transmitting end detection circuit, the transmitting end detection circuit being electrically connected to the magnetic coupling mechanism, the transmitting end detection circuit being used for detecting the position of a wireless charging device; wherein, the magnetic coupling mechanism can charge the wireless charging device.

[0018] The present invention proposes an array-type wireless charging system, including: a power supply, a host computer, a magnetic coupling mechanism, and a transmitting end detection circuit. Among them, the transmitting end detection circuit is electrically connected to the magnetic coupling mechanism, the transmitting end detection circuit is used for detecting a wireless charging device, and the magnetic coupling mechanism can charge the wireless charging device. When the array-type wireless charging system works, the host computer determines the remaining charging positions according to the currently counted number of magnetic coupling mechanisms, and then allocates charging positions. The allocated magnetic coupling mechanisms are powered on to start working. When the transmitting end detection circuit detects that the wireless charging device reaches the position of the allocated magnetic coupling mechanism, the magnetic coupling mechanism charges the wireless charging device. Through the system of the present invention, it is possible to dynamically determine the remaining charging positions according to the currently counted number of magnetic coupling mechanisms, so as to perform efficient charging position allocation and ensure the maximized utilization of charging resources. Moreover, any two adjacent magnetic coupling mechanisms are orthogonally arranged, which can not only save the floor area for placing the transmitting end, but also enable each charging unit to work independently without being interfered by the adjacent coils, enhancing the reliability and stability of the system.

[0019] It should be noted that a wireless charging device capable of wireless charging necessarily has a receiving coil, and the area of the transmitting coil is always larger than the area of the receiving coil.

[0020] Specifically, the present invention can supply power to multiple transmitting end units by a single power supply, or multiple power supplies can be selected to supply power to multiple transmitting end units respectively. The specific power supply scheme needs to be combined with the charging requirements of the load.

[0021] Preferably, the charging positions are allocated to the receiving end devices to be charged according to the principle of "inside first and then outside".

[0022] Further, as Figure 2 andFigure 3 As shown, in some embodiments of the present invention, the magnetic coupling mechanism includes: a magnetic shielding layer; a transmitting coil, the transmitting coil is connected to the magnetic shielding layer; a transmitting end detection coil, the transmitting end detection coil is sleeved on the transmitting coil.

[0023] In this embodiment, the magnetic coupling mechanism includes a magnetic shielding layer, a transmitting coil, and a transmitting end detection coil. Among them, the transmitting coil is connected to the magnetic shielding layer, and the transmitting end detection coil is sleeved on the transmitting coil. Through the transmitting end detection coil, an induced voltage can be generated with the receiving end line right of the wireless charging device, and then the position of the wireless charging device can be judged according to the induced voltage, improving the convenience of charging.

[0024] Specifically, the transmitting end detection coil always remains in the working state until the receiving end device completely leaves the array wireless charging system.

[0025] Measure the relative position boundary where the receiving end device and the transmitting coil meet the charging requirements. Based on this boundary, determine the mutual inductance value range between the receiving end transmitting end detection coil and the transmitting end detection coil, and use this range as the basis for the detection signal.

[0026] After the receiving end device enters the charging area, it travels according to the charging position assigned by the host computer. When the mutual inductance value between the receiving end transmitting end detection coil and the transmitting end detection coil meets the specified range, it means that the main coil can be powered at this time; since the magnetic field direction of the transmitting end detection coil is perpendicular to the main magnetic field direction, it will not interfere with the power supply performance of the system.

[0027] Furthermore, in some embodiments of the present invention, the transmitting coil is a DD-type coil.

[0028] In this embodiment, the transmitting coil being a DD-type coil can maximize the effect of orthogonal placement. Furthermore, it can avoid the interference of adjacent coils, enhancing the reliability and stability of the system. And the transmitting end detection coil can also be sleeved at the very middle position of the transmitting coil, which is beneficial to the detection of the position of the wireless charging device.

[0029] Furthermore, in some embodiments of the present invention, there is a compensation topology circuit, the compensation topology circuit is electrically connected to the transmitting coil, and the compensation topology circuit is used to compensate the reactive power of the transmitting coil.

[0030] In this embodiment, the compensation topology circuit is electrically connected to the transmitting coil and is used to compensate the reactive power of the transmitting coil, which is helpful for actual power transmission and remains circulating between the power supply and the load, resulting in higher current and power losses. Through the compensation topology circuit, the reactive power flow can be minimized and the power transmission efficiency can be improved.

[0031] Further, in some embodiments of the present invention, a rectification module is electrically connected to a power supply and is configured to convert alternating current into direct current; an inversion module is electrically connected to the rectification module and is configured to convert direct current into alternating current.

[0032] In this embodiment, the alternating current power supply is converted into a stable direct current power supply by the rectification module, and then the direct current power supply is converted into an alternating current power supply that meets the requirements of the load by the inversion module, which can significantly improve the charging efficiency. This helps to shorten the charging time and improve the user experience.

[0033] Further, in some embodiments of the present invention, as Figure 4 shown, the transmitting end detection circuit includes: a first control switch, the first end of the first control switch is electrically connected to the first end of the inversion module, and the second end of the first control switch is electrically connected to the transmitting coil; a second control switch, the first end of the second control switch is electrically connected to the second end of the inversion module, and the second end of the second control switch is electrically connected to the transmitting coil; a controller, the controller is electrically connected to the power supply and is electrically connected to the transmitting end detection coil, and the controller is configured to control the on / off of the first control switch and the second control switch.

[0034] In this embodiment, when an induced voltage is generated between the transmitting end detection coil and the coil at the receiving end, the controller controls the first control switch and the second control switch to close, thereby completing the energization of the magnetic coupling mechanism at the specified position. When no induced voltage is generated between the transmitting end detection coil and the coil at the receiving end, the controller controls the first control switch and the second control switch to open, thereby completing the de-energization of the magnetic coupling mechanism at the specified position, realizing the automation and intelligence of the charging process.

[0035] Further, in some embodiments of the present invention, the wireless charging device includes: a load battery; a receiving end detection coil; a receiving end detection circuit, the receiving end detection circuit is electrically connected to the receiving end detection coil and is configured to detect the induced voltage of the transmitting end detection coil; a receiving coil, the receiving coil is electrically connected to the load battery. In this embodiment, after an induced voltage is generated between the transmitting end detection coil and the receiving end detection coil, the receiving coil is used to charge the load battery.

[0036] In one specific embodiment, the working process of the present invention is as follows: The host computer determines the remaining charging positions according to the currently counted number of magnetic coupling mechanisms, and then allocates the charging positions. The allocated transmitting coil is powered on to start working. When the induction voltage is generated between the transmitting end detection coil and the coil of the receiving end, it means that the wireless charging device has reached the specified position. The controller controls the first control switch and the second control switch to close, and then completes the power-on of the magnetic coupling mechanism at the specified position, and the magnetic coupling mechanism charges the wireless charging device. When the wireless charging device completes charging and moves away from the magnetic coupling mechanism, the induction voltage disappears, and the controller controls the first control switch and the second control switch to open, and then completes the power-off of the magnetic coupling mechanism at the specified position.

[0037] In the claims, the specification and the drawings of the present invention, the term "a plurality of" means two or more, unless otherwise explicitly defined. The orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for more conveniently describing the present invention and making the description process more simple, rather than indicating or implying that the device or element referred to must have the specific orientation, be constructed and operated in the specific orientation. Therefore, these descriptions should not be construed as limitations on the present invention; terms such as "connection", "installation", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection between multiple objects, a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects, or an indirect connection between multiple objects through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances of the above data.

[0038] In the claims, the specification and the drawings of the present invention, the description of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In the claims, the specification and the drawings of the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0039] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An array type wireless charging system for wireless charging equipment, characterized in that: include: power supply; Host computer; A magnetic coupling mechanism, wherein the number of the magnetic coupling mechanisms is multiple, any two adjacent magnetic coupling mechanisms are orthogonally placed, the magnetic coupling mechanism is electrically connected to the power supply, and the magnetic coupling mechanism is electrically connected to the host computer; A transmitter detection circuit, the transmitter detection circuit is electrically connected to the magnetic coupling mechanism, and the transmitter detection circuit is used to detect the position of the wireless charging device; Wherein, the magnetic coupling mechanism can charge the wireless charging device.

2. The array type wireless charging system according to claim 1, characterized in that: The magnetic coupling mechanism comprises: Magnetic shielding layer; A transmitting coil, wherein the transmitting coil is connected to the magnetic shielding layer; The transmitting end detection coil is sleeved on the transmitting coil.

3. The array type wireless charging system according to claim 2, characterized in that: The transmitting coil is a DD type coil.

4. The array type wireless charging system according to claim 2, characterized in that: A compensation topology circuit is electrically connected to the transmitting coil, and the compensation topology circuit is used to compensate for the reactive power of the transmitting coil.

5. The array type wireless charging system according to claim 4, characterized in that: A rectifier module, the rectifier module is electrically connected to the power supply, and the rectifier module is used to convert alternating current into direct current; An inverter module, wherein the inverter module is electrically connected to the rectifier module, and the inverter module is used to convert direct current into alternating current.

6. The array type wireless charging system according to claim 5, characterized in that: The transmitting end detection circuit comprises: a first control switch, wherein a first end of the first control switch is electrically connected to a first end of the inverter module, and a second end of the first control switch is electrically connected to the transmitting coil; a second control switch, wherein a first end of the second control switch is electrically connected to a second end of the inverter module, and a second end of the second control switch is electrically connected to the transmitting coil; A controller, wherein the controller is electrically connected to the power supply, the controller is electrically connected to the transmitting end detection coil, and the controller is used to control the on and off of the first control switch and the second control switch.

7. The array type wireless charging system according to claim 2, characterized in that: The wireless charging device comprises: Load battery; Receiving end detection coil; A receiving end detection circuit, the receiving end detection circuit is electrically connected to the receiving end detection coil, and the receiving end detection circuit is used to detect the induced voltage of the transmitting end detection coil; A receiving coil is electrically connected to the load battery.

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